Describe the bug
ONNX files can store tensor data either in a type-specific field, or in the raw_data field as raw, little-endian bytes.
wonnx promotes constant tensors to node attributes to allow evaluation, but that promotion only looks at the type-specific field, not raw_data, leading it to write an empty tensor in the attribute. This then shows up as an error like:
compiling node 'model_1/model/channel_padding/Pad' failed: the value '[]' is invalid for attribute 'pads' (opset version 13)'
Describe the bug ONNX files can store tensor data either in a type-specific field, or in the
raw_datafield as raw, little-endian bytes.wonnx promotes constant tensors to node attributes to allow evaluation, but that promotion only looks at the type-specific field, not
raw_data, leading it to write an empty tensor in the attribute. This then shows up as an error like:To Reproduce (this requires the optimizer fix from https://github.com/webonnx/wonnx/pull/158 to reproduce)
To reproduce, try running inference for palm_detection_lite.onnx.zip.